Ice-cutting machine.



J. S. KOHR.

7 ICE CUTTING MACHINE.

APPLICATION FILED NOV. 7, 1910.

1,029,133, Patented June 11, 1912.

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ICE (PUTTING MACHINE.

APPLICATION FILED NOV.1, 1910.

1,029,133, Patented June 11,1912. I

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JJZZfiZ Inventor by I I Attorneys tinrr JOHN S. KOI-IR, F ONSET,PENNSYLVANIA, ASSIGNOR 0F ONE-HALF TO RAYMOND W- KB/ALL, OF YORK,PENNSYLVANIA.

ICE-CUTTING MACHINE.

Specification of Letters Patent.

Patented June 11, 1912.

Application filed November 7, 1910. Serial No. 591,141.

sylvania, have invented a new and useful Ice-Cutting Machine, of whichthe following is a specification.

This invention relates to ice cutting machines and has for its objectthe provision of a machine for cutting blocks of ice out of doors andwherein the entire mechanism, including the saw, and the drivingapparatus, may be operated by one or more persons.

A further object is to provide driving or propelling wheels of novelform and special means for actuating the same and for moving them intoand out of operative posit-ions.

With the foregoing and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed can be made within thescope of what is claimed without departing from the spirit of theinvention.

In the accompanying drawings the preferred form of the invention hasbeen shown.

In said drawings :Figure 1 is a side elevation of the complete machinewith the exception of the laterally extending guide carrying arm, whicharm is shown in section. Fig. 2 is a vertical longitudinal sectionthrough the machine on line 22 Fig. 3. Fig. 3 is a plan view of themachine. Fig. 4 is a section on line A-Bof Fig. 3. Fig. 5 isaperspective view of the guide arm and the plate carried thereby. Fig. 6is a section on line CD Fig. 4:, said section being taken solely throughthe saw and its guide-way. Fig. 7 is an enlarged section through theconnection between the saw rod and its actuating link.

Referring to the figures by characters of reference 1 2 and 3 constitutesills extending longitudinally of the machine and connected together attheir ends by cross sills 4 and 5, all of said sills cooperating to formthe base frame of the machine. Corner posts 6 extend upwardly from theends of the sills 1 and 3 and additional posts extend upwardly from theends of the Sills 2, these last mentioned posts being indicated at- 7.Posts 6 and 7 support end strips 8 and side strips 9 constituting thetop frame of the machine, there being intermediate end posts '10 mountedbetween the strips 4: and 5 and the top strips 8. These posts 10 areconnected, adjacent their lower ends by a longitudinally extending sill11 and another longitudinal member 12 connects the upper end portions ofthe posts 10.

Rock shafts 13 and 14 are journaled upon the sills 1 and 2 adjacent thefront and rear ends respectively of the machine, the shaft 13 beingprovided with a centrally disposed caster 15 while the rock shaft 1 1 isprovided with casters 16 located preferably adjacent its ends. Both ofthese shafts have radially extending arms 17 each connected as by meansof a link 18 to a lifting head 19 movably mounted within the machine.This head has a central upstanding arm 20 pivotally connected to one endof an operating lever 21, said lever being fulcrumed, as at 22, upon apost 23 which connects the strips 11 and 12 at intermediate points. Thislever projects beyond the front end of the machine and is adapted to beheld in any position to which it may be adjusted, by means of a pin 24or the like insertible into any one of the series of openings 25 in theadjacent post 10.

Propelling rollers 26 are journaled upon the sills 1 and 2 adjacent theends thereof, each of these rollers being provided with spurs orprojections 27 adapted to engage the ice when the casters 15 and 16 areelevated and thus propel the machine when power is transmitted to one ofthe rollers. One of. these rollers has a gear 28, shown by dotted linesin Fig. 2, this gearmeshing with one of a train of gears 29 carried byand between the post or standard 23 and a corresponding standard 30interposed between the sill 1 and the top strip 9. The upper gear ofthis train is secured to a drive shaft 31 journaled upon the strips 9and carrying a fly wheel 32. Said shaft also has cranks 33 connected, bypitmen 34 to similar cranks 35 constituting parts of a shaft 36 which isjournaled on the strips 9. This shaft also carries a fly wheel 37 andhas a gear 38 keyed or otherwise secured to it and meshing with a gear39 secured to a supplemental drive shaft 40 journaled in posts orstandards 30' and 23 simllar to the posts 30 and 23 heretoforedescribed. Both of the shafts 31 and 40 are provided with angular heads41 adapted to be engaged by cranks 42 or the like whereby the shafts maybe rotated. The shaft 36 is provided, at that end thereof remote fromthe gear 38 with a crank 43, pivotally connected to a link 44. This-linkhas a forked end 45 for the reception of a rod 46. Said rodis pivot-allyconnected to the forked terminal of the link by means of a removablepivot pin 47 which is held against accidental displacement by means of aretaining leaf spring 48.

A guide-way 49 is secured to the frame of the machine at a point belowthe crank 43 and has a central longitudinal passage 50 from which opensa slot 51 through one face of the guideway. In the opposite wall of thepassage is a groove 52 in the same plane with the slot 51. The saw 53 islocated in'the passage 50, one edge portion of the saw engaging thegroove 52 while the other or toothed edge portion projects through theslot 51. The saw blade extends below the frame of the machine so as toengage the ice to be cut and the saw is fixedly connected to therod 46in any manner preferred. It will be apparent that the saw can thus bereciprocated through the actuation of link 44'by the crank 43. Byremoving the pin 47, rod 46 can be quickly disengaged from the link andthe saw readily lifted out of position sothat it will not engage the icewhile the machine is not in use or while it is being propelled to orfrom the point of use.

In order that the machine may be properly guided during the sawingoperation, a laterally extending guide arm 54 is hingedly connected tothe sill 3 at the rear end, this arm carrying a sleeve 55 which may belocked thereon in any position to which it may be adjusted by means of aset screw 56 or the like. This sleeve has a blade or plate 57 fixedrelative thereto and arranged so'as to travel upon one edge, this edgebeing adapted to extend into the cut previously made. For the purpose ofswinging the arm 54- into raisedor lowered position, a cord 58 isattached to the arm and extends upwardly into engagement with guidesheaves 59 suitably located on the frame of the machine the upper endofthe cord being attached to an operating lever 60 fulcrumed on themachine. By swinging this lever sothat the free end thereof will projectbeyond the front end of the machine, the cord 58 will be pulledlongitudinally and thus elevate the armagainst or close to the adjacentcorner posts 6. When the lever is swung in the other direction, as shownin Fig. 3 the arm 54 will swing downwardly and bring. the blade 57 intoengagement with'the ice;

In using, the machine the lever 21 is first shifted so as to force thehead 1-9 down:-

wardly and thus swing the casters 15 and 16 below the rollers 26. As thesaw is normally elevated within the guide-way and disconnected from link44, the machine can be pushed to the point of use or conveyed thereto inany other manner preferred. After the machine has been brought to thedesired position, the lever 21 is released from pin 24 and the machinewill therefore drop down until the rollers 26 come into engagement withthe ice. By connecting the saw with the link 44 and lowering the arm 54,the machine is placed'in condition for use. The mechanism can now beoperated by actuating shaft 31, motion being transmitted therefromthrough gears 29 to the roller '26 and through the pitmen 34 to theshaft 36. If preferred, however, the machine can be operated by rotatingthe shaft 40, motion being transmitted therefrom through gears 39 and 38to shaft 36 and from said shaft, through the pitmen 34, to shaft 31which, in turn, drives the gears 29 and thus actuates the roller 26. Asthe machine is thus propelled forward the saw is reciprocatedvertically, blade 57, by riding in the adjacent cut, serving to hold themachine against lat eral displacement.

What is claimed is 1.'In an ice cutting machine, the combinationof thesupporting frame, a vertically guided saw carried thereby, mechanism forreciprocating said saw, a pair of spiked rollers extending transverselyof the frame of the machine and serving to support the same during thecutting operation of the saw, gearing connecting a portion of the sawoperating mechanismto one of said rollers,

a pair of shafts extending transversely of' the frame of the machine atpoints nearthe ends thereof, arms secured to saidshafts, a pair ofsupporting wheels carried by the shaft at one end of the machine, asingle supporting wheel carried by the shaft at the other end of themachine, a lifting head, and means upon the frame and headforsimultaneously operating the arms to simultaneously raise or lowerthe supporting wheels.

2. In an ice cutting machine, the combination with a supporting'frame,of a guideway carried thereby, and. including a centralpassage, a slotthrough the front of the guide way and: communicating with the passage,and agroove in the rear wall of the passage in alinement' with the slot,a saw disposed in said guide-way with its inner edge in the groove andits toothed edge projecting through theslot, driving rollers journaled'upon the frame, and means connected with: the rollers and the saw foroperating the saw and rollers simultaneously.

3. In an ice cutting machine, the combination with a supporting frame,of a vertically guided saw carried thereby, means for reciprocating thesaw, ice-engaging rollers extending transversely of the frame andconstituting supports for the frame during the cutting operation of thesaw, gears connecting the saw-operating mechanism to one of saidrollers, arms adjacent the ends of the frame and mounted to swingrelative thereto, supporting wheels carried by the arms, and means forswinging the arms to shift the supporting wheels into or out ofengagement with the surface on which the machine is mounted.

4. In an ice-cutting machine, the combination with a supporting frame,of arms mounted to swing relative to the frame, means for actuating thearms, supporting wheels carried by the arms and movable therewith intoor out of engagement with the surface supporting the frame, a saw pamtmr" their lowermost position to hold the frame elevated and therollers out of engagement with the ice.

In testimony that I claim the foregoing as my own, I have hereto ailixedmy signature in the presence of two witnesses.

JOHN s. Konn.

Witnesses:

F. B. Oonsnnnnrrnn, HERBERT D. LAWSON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

\ Washington, D. G.

